diff --git a/src/parser.test.ts b/src/parser.test.ts
index 7a06904..4b6a17f 100644
--- a/src/parser.test.ts
+++ b/src/parser.test.ts
@@ -4,7 +4,7 @@ import { parseString } from "./parser";
 const JOBS = `
 NAME post with token
 CRON * * * * *
-POST $APP_URL/api/post?token=$TOKEN
+POST $\{APP_URL\}/api/post?token=$TOKEN
 Content-Type: application/json
 
 {
diff --git a/src/parser.ts b/src/parser.ts
index 9e013c9..9bca657 100644
--- a/src/parser.ts
+++ b/src/parser.ts
@@ -11,10 +11,13 @@ export function parseString(fileContent: string, variables = {}) {
   return jobs.map((job) => createJob(job));
 }
 
-function inject(fileContent: string, variables: Record<string, any>) {
+export function inject(fileContent: string, variables: Record<string, any>) {
   let res = fileContent;
   Object.keys(variables).map(
-    (v) => (res = res.replaceAll(`\$${v}`, variables[v]))
+    (v) =>
+      (res = res
+        .replaceAll(`\$${v}`, variables[v])
+        .replaceAll(`\$\{${v}\}`, variables[v]))
   );
   return res;
 }